must outring
Verbo irregular: outring - outrang- outrung

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must outring
you must outring
he must outring
we must outring
you must outring
they must outring 	I must be outringing
you must be outringing
he must be outringing
we must be outringing
you must be outringing
they must be outringing	I must have outrung
you must have outrung
he must have outrung
we must have outrung
you must have outrung
they must have outrung	I must have been outringing
you must have been outringing
he must have been outringing
we must have been outringing
you must have been outringing
they must have been outringing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not outring
you must not outring
he must not outring
we must not outring
you must not outring
they must not outring 	I must not be outringing
you must not be outringing
he must not be outringing
we must not be outringing
you must not be outringing
they must not be outringing	I must not have outrung
you must not have outrung
he must not have outrung
we must not have outrung
you must not have outrung
they must not have outrung	I must not have been outringing
you must not have been outringing
he must not have been outringing
we must not have been outringing
you must not have been outringing
they must not have been outringing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I outring?
must you outring?
must he outring?
must we outring?
must you outring?
must they outring? 	must I be outringing?
must you be outringing?
must he be outringing?
must we be outringing?
must you be outringing?
must they be outringing? 	must I have outrung?
must you have outrung?
must he have outrung?
must we have outrung?
must you have outrung?
must they have outrung? 	must I have been outringing?
must you have been outringing?
must he have been outringing?
must we have been outringing?
must you have been outringing?
must they have been outringing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not outring?
must you not outring?
must he not outring?
must we not outring?
must you not outring?
must they not outring? 	must I not be outringing?
must you not be outringing?
must he not be outringing?
must we not be outringing?
must you not be outringing?
must they not be outringing? 	must I not have outrung?
must you not have outrung?
must he not have outrung?
must we not have outrung?
must you not have outrung?
must they not have outrung? 	must I not have been outringing?
must you not have been outringing?
must he not have been outringing?
must we not have been outringing?
must you not have been outringing?
must they not have been outringing?